Lock



. E. B. STONE.

LOCK.

APPLICATION FILED 1AN.10 1921.

Patented June 113, 1922.

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ELIMER B. STONE, OF NEVI BRITAIN, CONNECTICUT, ASSIGNOR TO THE AMERICAN HARDVJARE CORPORATION, OF NEJV BRITAIN, CONNECTICUT, A CORPORA OF CONNECTICUT.

LOCK.

Specification of Letters Patent. Patg t d J 13 1922,

Application filed January 10, 1921. Serial No. 436,137.

To cZZ 1071,0122, 2'25 may concern:

Be it known that l, Eminn Sronn, a citizen of the United States, and a resident of b ow Britain, in the county of Hartford and State of Connecticut, have invented a new and Improved Lock, or which the following is a specification.

lily invention relates to the class of devices above named, and while not limited in its application to a lock oi any special character, yet the invention is particularly adapted to the so called trunk or hasp locks, and an object of my invention, among others, is to provide a lock having means for lessening the chances oi. injury thereto by turning the key in. the wrong direction.

A lock embodying my invention in one form and in the construction and use of which the objects herein set out, as well as others, may be attained, illustrated in the accompanying drawings, in which Figure 1 is a face view of the hasp ot a trunk lock embodying my invention with the face oi. the hasp cut away to show construction andillustrating'the key in position to throw the bolt into its locked position by turning in the direction indicated by the rrow.

Figure 2 is a similar view, but showing the bolt in its locked position, the key being illustrated in position to move the bolt backward in the direction indicated. by the arrow into its unlocked position.

Figure 3 is a similar view showing the bolt in its retracted or unlocked position but with the bit of the key resting against the safety nose.

Figure l is a similar view but showing the bolt partially thrown forward by turning the key in the wrong direction, the "Forward position of the bolt being shown in dotted lines and the relative position of the key bit and bolt at the time the latter springs for ward being thus illustrated.

Figure 5 is an edge view of the hasp shown in the preceding figures, partly broken away.

In the accompanying drawings the numeral (3 indicates a hasp of a trunk lock of usual form and construction that is 01" dish shape providing a recess 7 in its back face within which recess a case 8 is secured in a manner common to looks of this class. bolt 9 is slidably mounted in the case with its end projecting into an opening 10 in a manner common to locks of this class, said bolt being guided at one end by projecting into said opening and at its opposite end by resting against a lug 11, said lug being cut away t its lower edge to receive the bolt.

Said bolt has two retaining notches 1213, the former to retain the bolt in its locked positionand the latter to retain said bolt in its unlocked position by engagement with the edge of the cut-away portion of the lug 11, as shown in Figures 1 and 2 of the drawings. A nose 14- is located between the notches and a spring 15 in engagement with the lug 11 and with a spring receiving notch 16 on the back edge of the bolt forces the opposite edge of the bolt into contact with the edge or" the cut-away part of the lug 11 and when the bolt is moved so that the nose 14 is pressed against the edge of the cut-away part of said lug this pressure of the sloping sides of the nose against said edge of the cutaway part will force the bolt forward or back, depending upon which sloping surface of said nose may be in contact with the edge of said cut-away part of the lug.

A key post rises from one wall of the case in a manner common to devices of this kind to receive the barrel of a key 17, the bit 18 of which works against the edge of a bit receiving recess 19 in the edge of the bolt 9 to throw the bolt forward or backward, depending upon the direction in which said key is turned, said key being turned in the direction indicated by the arrow in Figure 1 to throw the bolt forward or into its locked position and said key being turned in the reverse direction or in the direction indicated by the arrow in Figure 2 to move the bolt backwardly and into its unlocked position.

It frequently happens that one, in operating a key, does not know in which direction to turn it to throw the bolt forward or to its locked position, and in many cases undue force being applied to the key to turn it in the wrong direction will result in the bending or breaking oi the bit of the key. I have provided means in my improved lock to avoid such result by forming a safety nose 20 on the bolt at one side of the bit recess 19. This nose is so constructed and located that it an attempt be made to turn the key in the wrong direction, and as indicated by the arrow in l i gnre 3, to throw the bolt forward and into its locked position, undue force applied to the key will cause the bolt to be thrown forward, and when the highest part of the nose 14L has passed the edge of the cutaway part of the lug 11 the action of the spring will throw the bolt forward and into its locked position, the relative position of the key bit and the safety nose at this time being indicated in dotted lines in Figure l of the drawings. It will thus be seen that it one persists in turning the key in the wrong direction to throw the bolt forward into its locked position the key will not be injured but the bolt will be thrown.

I claim 1. A look including a bolt having means for engagement and operation by a key to effect both movement in one direction by ro tation of: the key in one direction, and other means on said bolt tor operation by said key to effect the same bolt movement in the same direction as that of the bolt movement above described by a rotation oi the key in an oppositedirection to the direction of rotation above described.

2. A look including a bolt havinga recess tor operative engagement of a key for movement of the bolt in one direction by rotation of the key in one direction, and means on said bolt to receive operative engagement of said key for movement of the bolt in the same direction by rotation of the key in the opposite direction to the direction of rotation bove described.

3. A look including a bolt having a recess to receive operative engagement of a key to effect bolt movement in one direction by rotation of the key in one direction, and a nose on said bolt to operatively engage the key for bolt movement in the same direction as that of the bolt movement above described by rotation of the key in the opposite direction to the direction of rotation above described.

4C. A look including a bolt having means for direct engagement and operation by a key to move the bolt forward and into locked position by turning movement of: the key in one direction, and means on said bolt to receive said key for movement of the bolt into its locked position by turning movement of the key in the opposite direction to the direction of rotation above described.

5. A look including a bolt having a recess for operation by a key to move the bolt into its locked or closed position by turning movement of the key in one direction, said recess terminating in a safety nose to receive the key to move the bolt into its locked position by turning movement of the key in the opposite direction to the direction of rotation above described.

6. A look including a bolt movably mounted, and different means upon said bolt to directly receive a key and to be engaged thereby to move the bolt in the same direction by rotative movement of the key in opposite directions of rotation.

7. A look including a movably mounted bolt, moans upon said bolt to-receive a key to move the bolt into locked position by rotative movement of the key in one direction,

and other means upon said bolt to receive said key to move the bolt to locked position by increased force applied to said key, to rotate it in another direction.

ELMER B. STONE 

